If you don't get the cookies off the cookie sheet in time and they start to stick, pop the cookie sheet back in the hot oven for a minute or two. The heat should soften the cookies slightly, making removal easier.
Party Cookie Pops
Dipped Oatmeal Chocolate Chip Cookies
Double-Chocolate Chip Cookies
Poppin' Fresh® Double Decker Cookies
Calico Kitty Cookies